Published by Art press Verlag, Düsseldorf, 1970. Blue cloth with a printed dust jacket.

First book by the Becher couple. A selection of the photographic work. The book is divided into thematic chapters : Lime-kilns, Cooling-towers, Blast-furnaces, Winding-towers, Water-towers, Gas-holders, Silos. A late recognition for a very important and influential body of work.